I still love her as much as ever, what should i do?

My fiancee and I broke up about 5 weeks ago and i badly want her back. First off we lived together for over half a year and things were miraculous, I couldn't be anymore in love with her, but then a few weeks before we separated she found a new job that required a lot of time out of her already busy schedule as a full time student and I recently quit my job, at the same time her best friends who live far away in Japan and and southern California came back in town and of course she wanted to spend time with them, so I was basically left in the dust while she worked full time, went to school full time, and spent a lot of her free time with her friends. I felt like all we did is sleep next to eachother and because i was so lonly at home by myself all the time because I'm use to working everyday I started getting irritated all the time so even the time we did have together was ruined because of me. So the one chance we can actually do something together was a thursday night after she got out of work at 10 pm and got home at 11 pm so she suggested we see a movie but I didn't want to but I couldn't think if anything else to do at 11 at night so she got irritated and just left me behind and seen a movie with her friend which irritated me even more so I locked her out of our room for the night so she slept on the couch and in the morning she packed up her stuff and left to her parents house. At first she was willing to come back as long as I worked on myself then she decided she didn't want to come back at all and now were not even speaking. I love her so much and this may sound over dramatic but I'd rather die then live without her. I realize that I was at fault and I sincerely believe I'm better and have learned my lesson from all of this, I believe if I had a chance I could win her back but she won't give me one and she just ignores my calls and messages now. Please help and don't say give it time, because things are only getting worse over time. I love her so much.